Hello, while using a ShapeFile, created with gdaltindex, as data source for a layer I'd like to use a substring of the location attribute for labeling.
I could (and probably will) preprocess the ShapeFile to add the label text as additional attribute. But I wanted to try this step within MapServer first. My current example contains a path and file name. The file name has a 4 digit number in it I would like to use as label. To make it more complicated, the substring has various positions within the whole string. Maybe there is a way with tostring() which accepts sprintf formatting, but I couldn't figure out the correct syntax yet. With a database layer of course I would be able to use SQL to extract a substring and pass it as additional attribute, but not with a ShapeFile. Is there a way to extract a substring from an attribute value and use it as label? It would be nice to have a function available to use in EXPRESSION or TEXT parameter. Thank you in advance for any hints. Lars _______________________________________________ mapserver-users mailing list [email protected] http://lists.osgeo.org/mailman/listinfo/mapserver-users
